Eat Healthy
"Clean your plate!" and "Be a member of the clean-plate club1!’’ Just about every kid in the UShas heard this from a parent or grandparent. Often, it"s accompanied by an appeal： “Just think about those starving orphans in Africa!2" Sure, we should be grateful for every bite of food. Unfortunately, many people in theUStake too many bites3. Instead of staying "clean the plate", perhaps we should save some food for tomorrow.
According to news reports, US restaurants are partly to blame for the growing bellies. A waiter puts a plate of food in front of each customer, with two to four times the amount recommended by the government, according to a USA Today story.4 Americans traditionally associate quantity with value and most restaurants try to give them that. They prefer to have customers complain about too much food rather than too little.
Barbara Rolls, a nutrition professor at Pennsylvania State University； told USA Today that restaurant portion sizes began (o grow in the 1970s, the same time that the American waistline began to expand.
Health experts have tried to get many restaurants to serve smaller portions. Now, apparently, some customers are calling for this too. The restaurant industry trade magazine QSR reported last month that 57 percent of more than 4,000 people surveyed believe restaurants serve portions that are too large； 23 percent had no opinion； 20 percent disagreed. But a closer look at the survey indicates that many Americans who can"t afford fine dining still prefer large portions. Seventy percent of those earning at least $150,000 per year prefer smaller portions； but only 45 percent of those earning less than $25,000 want smaller.
It"s not that working class Americans don"t want to eat healthy. It"s just that, "after long hours at low-paying jobs, getting less on their plate hardly seems like a good deal.5 They live from paycheck to paycheck, happy to save a little money for next year"s Christmas presents.
词汇：
orphan /"ɔːf(ə)n/ n.孤儿
nurition /njʊ"trɪʃ(ə)n/ n.营养
belly /"belɪ/ n.肚子
waistline /"weɪs(t)laɪn/ n.腰围
paycheck/"pe,tʃɛk/ n.薪金支票
注释：
1. Be a member of the clean -plate club!做清盘俱乐部的成员
2. Just think about those starving orphans inAfrica!只要想想在非洲挨饿的孤儿们！
3. take too many bites 吃得太多
4. A waiter puts a plate of food in front of each customer, with two to four times the amount recommended by the government, according to a USA Today story.根据《今日美国》刊登的一个故事,服务员给每个顾客一盘饭菜,其量是政府推荐的2至4倍。
5. It"s just that, after long hours at low-paying jobs, getting less on their plate hardly seems like a good deal.事情是这样的，美国工人觉得做许多个小时低收入的工作下来,盘子里的饭菜量小有点不合算。What happened in the 1970s?
A:The US government recommended the amount of food a restaurant gave to a customer. B:Health experts persuaded restaurants to serve smaller portions. C:The United States produced more grain than needed. D:The American waistline started to expand
Passage Three
Considered as a continuous body of fluid, the atmosphere is another kind of ocean. Yet, in view of the total amount of rain and snow on land areas in the course of a year, one of the most amazing water facts is the very small amount of water in the atmosphere at any given time. The volume of the lower seven miles of the atmosphere--the realm of weather events- is roughly four times the volume of the world’s oceans. But the atmosphere contains very little water. It is chiefly in the form of invisible vapor, some of which is carried over land by air currents. If all vapor suddenly fell from the air onto the earth’s surface, it would form a layer only about one inch thick. A heavy rainstorm on a given area may use up only a small percentage of the water from the air mass that passes over. How, then, can some land areas receive more than 400 inches of rain per year How can several inches of rain fall during a single storm in a few minutes or hours The answer is that rain yielding air masses are in motion, and as the driving air mass moves on, new moist air takes its place.
The basic source of most water vapor is the ocean, evaporation, vapor transport, and precipitation (陈雨) make up the continuous movement of water from ocean to atmosphere to land and back to the sea. Rivers return water the sea. In an underground arc (弧) of the cycle, flowing bodies of water discharge some water directly into rivers and some directly to the sea.
It can be inferred from the passage that （）
A:the atmosphere has a lot of water in it when it circulates B:the water in the atmosphere is purer than that in the world's oceans C:the amount of water in the atmosphere is greater than that in the oceans in the world D:the small amount of water in the atmosphere plays an important role in the yearly rainfall
有如下程序： #include＜iostream＞ using namespace std； class Amount{ int amount； public： Amount(int n=0)：amount(n){ } int getAmount( )const{return amount；} Amount&operator+=(Amount A) { amount+=a.amount； return； } }； int main( ){ Amount x(3)，y(7)； x+=y： cout＜＜x.getAmount( )＜＜endl； return 0； } 已知程序的运行结果是10，则下画线处缺失的表达式是
A:*this B:this C:&amount D:amount
有如下程序：
#include＜iostream＞
using namespace std；
class Amount{
int amount；
public：
Amount(int n=0):amount(n){}
int getAmount（ ）const{return amount;}
Amount&operator9＝(Amount a){
amount+=a. amount；
return______；
}
};
int main（ ）{
Amount x(3),y(7)；
x+＝y，
cout＜＜x. getAmount（ ）＜＜endl；
return 0；
}
已知程序的运行结果是10，则下划线处缺失的表达式是
A:* this B:this C:&amount D:amount
有如下程序： #include＜iostream＞ Using namespace std； Class Amount{ int amount； public； Amount(int n=0):amount(n){} Int getAmount（ ）const{return amount;} Amount &operator+=(Amount a){ amount+=a.amount； return______； } }； int main（ ）{ Amount x(3),y(7)； x+=y； cout＜＜x.getAmount（ ）＜＜endl； return 0； } 已知程序的运行结果是10，则横线处缺失的表达式是( )。
A:*this B:this C:&amount D:amount
有如下程序：
#include＜iostream＞
using namespace std；
class Amount{
int amount；
public：
Amount(int n=0):amount(n){}
int getAmount（ ）const{return amount;}
Amount&operator9＝(Amount a){
amount+=a. amount；
return______；
}
};
int main（ ）{
Amount x(3),y(7)；
x+＝y，
cout＜＜x. getAmount（ ）＜＜endl；
return 0；
}
已知程序的运行结果是10，则下划线处缺失的表达式是
A:* this B:this C:&amount D:amount
有下列程序： #include＜iostream＞ Using namespace std; Class Amount{ int amount; public; Amount(int n=O):amount(n){} Int getAmount（ ）const{return amount;} Amount &operator+=(AmountA) { amount+=a.amount; return } }; int main（ ）{ Amount x(3),y(7); x+=y; cout＜＜x.getAmount（ ）＜＜endl; return 0; } 己知程序的运行结果是10，则横线处缺失的表达式是( )。
A:*this B:this C:&amount D:amount
阅读理解
